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update esos_dev_guide #151

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Expand ESOS development guide with new content
LittlepigNellJ Apr 21, 2026
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doc: update esos_dev_guide.md
LittlepigNellJ Apr 28, 2026
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110 changes: 109 additions & 1 deletion zh/k3_buildroot/esos/esos_dev_guide.md
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sidebar_position: 1
---

# ESOS 开发指南
# ESOS 开发指南
esos系统基于rt-thread开发，跑在rcpu上，其功能包含如下两部分
1. 配合大核完成能效管理，如调频调压、power-switch开关、系统reboot、系统休眠唤醒
2. 配合大核完成实时任务处理，如控制电机转动、控制继电器开关等

## ESOS目录结构
### SDK根目录结构
```
|-- bsp-src
| |-- linux-6.18
| |-- opensbi
| `-- uboot-2022.10
|-- buildroot
|-- buildroot-ext
|-- Makefile
|-- package-src
| |-- esos
`-- scripts
|-- build-muse-boot-plt.sh
|-- build-plt-stability.sh
|-- check-config.sh
|-- check-dl-update.py
|-- Dockerfile
|-- envsetup.sh
|-- gen_imgcfg.py
|-- LICENSE
|-- Makefile
`-- ubuntu.mirror

```
### ESOS内部目录结构
```.
|-- AUTHORS
|-- bsp
| |-- spacemit
|-- build.sh
|-- build_top.sh
|-- ChangeLog.md
|-- components
|-- debian
|-- documentation
|-- esos_rt24.its
|-- esos_rt24_sign.its
|-- examples
|-- include
|-- Jenkinsfile
|-- Kconfig
|-- libcpu
| |-- risc-v
|-- LICENSE
|-- null.spacemit
|-- README.md
|-- README_zh.md
|-- src
`-- tools

```
## ESOS编译方法
### 顶层SDK编译方法
```
# 编译，默认编译rt24 all core
make esos

# 清理
make esos-dirclean

# 重新编译，注意不是make esos-rebuild
make esos-reconfigure

```
### ESOS单独编译及配置
esos的修改或者menuconfig配置需要进入esos源码目录，并选择要修改的core：
```
./build.sh config
INFO: prepare to config esos sdk ...
All valid soc chips:
0: n308
1: rt24
Please select a chip:1
All valid boards:
0: os0_rcpu
1: os1_rcpu
Please select a board:0

INFO: target configuration is as follows:
INFO: -------------------------------------------------------------------------
export TARGET_CHIP=rt24
export TARGET_BOARD=os0_rcpu
export TARGET_DEFCONFIG=rt24_os0_rcpu_defconfig
export TARGET_ENTRY_POINT=0x100200000
INFO: -------------------------------------------------------------------------

```
选完core后就可以开始用menuconfig进行图形化配置，配置完成后修改保存在bsp/spacemit/platform/rt24/osX_rcpu/rt24_osX_rcpu_defconfig
```
./build.sh menuconfig

```
修改完成后，运行指令可以生成core的.elf文件
```
./build.sh

```
要生成esos.itb需要返回上层目录执行如下命令：
```
cd buildroot-k3
make esos-reconfigure

```